On this lesson, you will learn how to perform reflections over the x-axis and reflections over the y-axis (also known as across the x-axis and across the y-axis) and reflections over the line y=x. For more MashUp Math content, visit and join our free mailing list! :) Download the free PDF lesson guide here: This lesson answers the questions: How do I reflect a figure over a line? How do I reflect a point over the line y=x? How do I reflect a point? What is the difference between a reflection and rotation? How do I reflect over the line y=-x? Be sure to join our mailing list at